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Tesla Automotive Technical Manual – Fuse Specs, Types, and Dimensions

I’ve been wrenching for 28 years, and the number of electrical fires I’ve seen from a wrong fuse rating could fill a scrap bin. You don’t guess on fuses. You get the OEM data. That’s why this Tesla Automotive Technical Manual from TESLA BLATNA – the actual fuse manufacturer for Tesla vehicles – sits on my bench. It’s 51 pages of factory specs on every automotive fuse and holder they make. No aftermarket approximations. No translations from third-party shops. This is the raw catalog the engineers use.

Fuse Types in This Manual – From Blade to Cartridge

Open to page 4 and you get blade fuses – the standard flat ones, glow blade fuses with indicator lights, and special 80V blade fuses for higher-voltage systems. Page 8 covers bolt-down MIDI and MEGA fuses. That’s what you find on modern EVs and hybrids. Cartridge fuses start on page 12. Glass fuses page 18. Every single type has current ratings, voltage limits, and physical dimensions in mm. If you’re swapping a fuse on a Model S or a Roadster, you match these numbers. Nothing else.

Fuseholders and Packaging – Page 33 Details

You think a fuseholder is a fuseholder? Wrong. The wrong holder adds resistance, heats up, and melts wire. Page 33 lists every holder TESLA BLATNA makes: inline, panel-mount, PCB, weatherproof. They give you the wire gauge range and the insertion force. I once rebuilt an entire 12V distribution block because a guy used a generic holder – it cost him two days of labor and a melted harness. Don’t be that guy. This manual gives you the factory part number and the geometry.

51 Pages of Factory Electrical Data

The manual covers fuse packing too – industrial cartons, plastic boxes, blister packs. That sounds like warehouse stuff, but when you need the exact dimensions to fit a fuse into a tight battery management system, the packing info tells you the real outer size. The manual also includes the TecDoc certification (page 2), which means the data is synced with the European parts database. If your diagnostic tool pulls up a Tesla fuse number, this manual decodes it.

Who Needs This Manual?

Home garage guys who are upgrading their EV conversion project. Electrical diag techs who replace fuse blocks on Teslas and need the original current ratings. Shop owners tired of sending customers away because they can’t match a blown 60A MIDI fuse. This isn’t a whole-car repair manual – it’s a specialized reference for the one system that stops your car cold when it fails. Pair it with the Tesla MX 12V Harness System Wiring Diagram”>Tesla MX 12V Harness System Wiring Diagram and you’ve got the electrical side covered.

Why OEM Documentation Beats Aftermarket Specs

Aftermarket fuse catalogs lump sizes together and round ratings. Factory data from TESLA BLATNA shows you the exact OEM part – not a cross-reference that might work. I’ve seen a “universal” blade fuse that was 0.5mm thicker than factory – it jammed the holder and cracked the plastic. This manual ends that. Every dimension is in millimeters. Every glow blade indicator light color is documented. No guesswork. And if you need a crane manual for a different project, check the Drogobych Crane KTA-16/25/28 2004 Installation Manual – Section: Общие Указания”>Drogobych Crane KTA-16/25/28 2004 Installation Manual. But for automotive fuses, this is it.

Does this manual include wiring diagrams for full vehicle circuits?

No. This is a fuse and fuseholder catalog – it lists products, ratings, dimensions, and packing data. For wiring diagrams, get the specific Tesla service manual for your model.

What current ratings are covered?

Blade fuses from 2A to 100A. MIDI and MEGA fuses up to 500A. Glass fuses from 0.5A to 30A. All factory tested to ISO 9001:2008 standards (page 3 certifies that). You also get voltage ratings for 12V, 24V, and 80V systems. If you need torque specs, you won’t find them here – this is electrical, not mechanical. For that, look at the MODULOS DISPONIBLES PARA EL MULTIEQUIPO CJ EURO”>MODULOS DISPONIBLES PARA EL MULTIEQUIPO CJ EURO manual.

You can read more about Automotive Industry Overview”>Automotive Industry Overview on Wikipedia or check Manual Transmission”>Manual Transmission basics – but when you need to know if a 60A MEGA fuse fits a specific holder, this manual is the only source. Get it on your tablet or printed. No more blown guesses.

Access the Factory Manual and pull up the exact fuse cross-section on page 4 before you buy a replacement. Your wiring will thank you.